Seth H. Z. Fischer
CIK 1573553 · View on SEC EDGAR ↗
Insider
First SEC filing: July 20, 2015 · Latest: June 12, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 11 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 13, 2026 | ESPR | D | 44,000 | — | — | 0 Direct | -100.00% | Disposed | |
| July 13, 2026 | ESPR | D | 32,500 | — | — | 0 Direct | -100.00% | Disposed | |
| July 13, 2026 | ESPR | D | 21,000 | — | — | 0 Direct | -100.00% | Disposed | |
| July 13, 2026 | ESPR | D | 141,023 | — | — | 0 Direct | -100.00% | Disposed | |
| June 10, 2026 | MIST | A | 77,000 | — | — | 77,000 Direct | — | Acquired | (price as of 2026-08-21) |
| May 28, 2026 | ESPR | A | 79,873 | — | — | 141,023 Direct | +130.62% | Acquired | |
| June 10, 2025 | MIST | A | 40,000 | — | — | 40,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Aug. 28, 2024 | MIST | A | 40,000 | — | — | 40,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 7, 2023 | MIST | A | 30,000 | — | — | 30,000 Direct | — | Acquired | (price as of 2026-08-21) |
| March 21, 2023 | MIST | A | 42,000 | — | — | 42,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Oct. 16, 2018 | STEX | A | 50,000 | — | — | 60,000 Direct | +500.00% | Acquired | (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| July 13, 2026 | ESPR | Stock Option (right to buy) | Common Stock (44,000) | — | May 29, 2035 | 44,000 | Disposed |
| July 13, 2026 | ESPR | Stock Option (right to buy) | Common Stock (32,500) | — | May 23, 2034 | 32,500 | Disposed |
| July 13, 2026 | ESPR | Stock Option (right to buy) | Common Stock (21,000) | — | June 15, 2033 | 21,000 | Disposed |
| June 10, 2026 | MIST | Stock Option (right to buy) | Common Stock (77,000) | $1.22 | June 10, 2036 | 77,000 | Acquired |
| June 10, 2025 | MIST | Stock Option (right to buy) | Common Stock (40,000) | $1.75 | June 10, 2035 | 40,000 | Acquired |
| Aug. 28, 2024 | MIST | Stock Option (right to buy) | Common Shares (40,000) | $1.45 | Aug. 28, 2034 | 40,000 | Acquired |
| June 7, 2023 | MIST | Stock Option (right to buy) | Common Shares (30,000) | $3.86 | June 7, 2033 | 30,000 | Acquired |
| March 21, 2023 | MIST | Stock Option (right to buy) | Common Shares (42,000) | $3.45 | March 21, 2033 | 42,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 20, 2015 | STEX | Common Stock, $0.001 par value per share | 25,000 | Direct |
| July 20, 2015 | STEX | Options to Purchase Common Stock→ Common Stock (187,500) | 187,500 | Direct |
| July 20, 2015 | STEX | Options to Purchase Common Stock→ Common Stock (150,000) | 150,000 | Direct |
| July 20, 2015 | STEX | Options to Purchase Common Stock→ Common Stock (163,444) | 163,444 | Direct |
| July 20, 2015 | STEX | Options to Purchase Common Stock→ Common Stock (25,000) | 25,000 | Direct |